Headstone is a trait in Destiny 2 that can appear on 65 weapons. An enhanced version exists on crafted and some newer weapons.
What Headstone does
Precision final blows spawn a [Stasis] Stasis crystal at the victim's location.
Enhanced version
Precision final blows spawn a large Stasis crystal at a target's location.
Weapons that can roll Headstone (65)
A Distant PullStasis · Sniper Rifle
Action ItemStasis · Trace Rifle
AppetenceStasis · Trace Rifle
Blood FeudStasis · Submachine Gun
Bold EndingsStasis · Hand Cannon
Chain of CommandStasis · Machine Gun
Conspiracy HonedStasis · Sniper Rifle
Critical AnomalyStasis · Sniper Rifle
Critical Anomaly (Adept)Stasis · Sniper Rifle
DisparityStasis · Pulse Rifle
ExuviaeStasis · Hand Cannon
EyaslunaStasis · Hand Cannon
Fair JudgmentStasis · Auto Rifle
Faustus DeclineStasis · Sidearm
Fire and ForgetStasis · Linear Fusion Rifle
Forensic NightmareStasis · Submachine Gun
Hailing ConfusionStasis · Pulse Rifle
Herod-CStasis · Auto Rifle
Horror StoryStasis · Auto Rifle
IntercalaryStasis · Auto Rifle
IrukandjiStasis · Sniper Rifle
Jararaca-3srStasis · Scout Rifle
JudgmentStasis · Hand Cannon
Judgment (Adept)Stasis · Hand Cannon
JurisprudentStasis · Scout Rifle
KraitStasis · Auto Rifle
Liminal VigilStasis · Sidearm
Liminal Vigil (Adept)Stasis · Sidearm
Live FireStasis · Scout Rifle
Locus LocutusStasis · Sniper Rifle
Lunulata-4bStasis · Combat Bow
Modified B-7 PistolStasis · Hand Cannon
New PurposeStasis · Pulse Rifle
No ReprieveStasis · Shotgun
PeacebondStasis · Sidearm
Perses-DStasis · Scout Rifle
Prolonged EngagementStasis · Submachine Gun
Psi Hermetic VStasis · Pulse Rifle
Qullim's TerminusStasis · Machine Gun
Qullim's Terminus (Harrowed)Stasis · Machine Gun
RaconteurStasis · Combat Bow
Rapacious AppetiteStasis · Submachine Gun
Recurrent ImpactStasis · Machine Gun
Red TapeStasis · Scout Rifle
Redrix's EstocStasis · Pulse Rifle
Reed's RegretStasis · Linear Fusion Rifle
Reed's Regret (Adept)Stasis · Linear Fusion Rifle
Senuna SI6Stasis · Sidearm
Solemn RemembranceStasis · Hand Cannon
Something NewStasis · Hand Cannon
Stay FrostyStasis · Pulse Rifle
SubmersionStasis · Combat Bow
Suspectum-4frStasis · Linear Fusion Rifle
Syncopation-53Stasis · Pulse Rifle
The ProphetStasis · Scout Rifle
The Prophet (Adept)Stasis · Scout Rifle
The Spiteful FangStasis · Combat Bow
The Time-Worn SpireStasis · Pulse Rifle
ThoughtlessStasis · Sniper Rifle
TrachinusStasis · Shotgun
Ulterior ObservationStasis · Machine Gun
Unending TempestStasis · Submachine Gun
Veiled ThreatStasis · Auto Rifle
VulpeculaStasis · Hand Cannon
Yarovit MG4Stasis · Submachine Gun